Apr 19, 2007. /Lesprom Network/. The rating company Moody's has revised its outlook on Norske Skog's debt to 'negative' from 'stable'. According to Moody's, the outlook change reflects that the development in prices and costs so far has not given the required improvement in results. The rating itself is kept on "Ba1". Norske Skog is a world leading producer of newsprint and magazine paper, with 18 paper mills around the world.